Orchard-heater



C. STOLLBERG.

ORCHARD HEATER.

APPLICATION FILED SEPT. 18. I9I5.

Patented May 27, 1919.

2 SHEETS-SHEET I.

W 47 re 'M c. STOLLBERG.

Patented May 27, 1919.

2 SHEETS-SHEET 2.

.1, M j 1 W Z W i M w 7 w? h t a W M Z 7. I f a? .i F m V 1 5 f 2 4 2 i UNITED STATES PATENT. OFFICE.

CHARLES STOLLBERG, 0F TOLEDO, OHIO, ASSIGNOR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

ORCHARD-HEATER.

V Specification of Letters Patent.

Patented May 27, 1919.

Application filed September 18, 1915. Serial No. 51,352.

To all whom it may concern:

Be it known that I, GHARLns S'romaanne, a citizen of the United States, residing in Toledo, in the county of Lucasand State of Ohio, have invented a new and useful Improvement in Orchard-Heaters, of which the following is a specification.

My invention relates in general to orchard heaters and has more particular reference to heaters of this character adapted for the burning of heavy, cheap oils as fuel.

A principal object of the invention is the provision of a heater of the character described wherein combustion of fuels of varying characteristics will be complete even when the heater is handled and used by persons relatively unfamiliar with the manipulation and adjustment of such articles.

A further object is the provision of an orchard heater having a pilot li ht whereby the fuel consumption or burning will be regularly and continuously maintained from the time of starting the heater until it is extinguished or until the fuel is exhausted, and this without the production of smoke, soot or the like which may lodge upon the vegetation and render it unsatisfactory or unsaleable.

A still further object is the improvement of the general construction of articles of this character without material increase in cost of production and without materially increasing the number of parts or the complexity of the structure.

Other objects and advantages of the invention will be apparent as it is better understood from the following description when considered in connection with the accompanying drawing illustrating a preferred embodiment thereof.

On the drawing,

Figure 1 is a side elevation of an orchard heater embodying my invention showing }parts in the position they assume when the eater is not in use;

Fig. 2 is a section taken substantially on the line 22 of Fig. 1;

Fig. 3 is a vertical section with the parts arranged for use;

ed of sheet metal and of low slightly tapering form. Near its upper edge an inwardly extending depression 11 is provided, and thereabove the material extends outwardly to form a flange l2 beneath which the fingers of the user may be engaged to lift the burner and move it from place to place. Above the flange 12 the" edge extends upwardly at 13 and into a false wire bead or curled edge 14 about which the cover is engaged.

This cover in the present lnstance consists of a flaring sheet metal member 15 which is higher at its center than at its edge. The edge is bent to provide a flangel6 terminating in a false wire bead or curled edge 17 frictionally engaging over the flange 13 at the edge of the body. The cover is perforated cent-rally at 18 to establish communication with the stack and is perforated also at one side at 19 for a purpose which will be later described.

The stack in the present instance consists of two telescoping parts 21 and 2 2, each of sheet metal. The part 22, which is the lower part, is crimped at its lower edge at 23 in the perforation 18 of the cover-and extends upwardly therefrom in .vertical position. The crimping between be lower portion of the stack and the edge of the; cover about the perforation 18 is preferably so arranged as to provide no obstructiontocommunication between the body and the stack. The part 22 is corrugated horizontally as seen at 24 intermediate its ends, and in the underside of said corrugations, openings 25 are provided which are adapted to draw atmospheric air into the stack during the operation of the heater and cause it to mingle in an upward movement or draft with the partly burned volatile gases of the fuel. The inclination thus given these apertures aids materially in increasing the upward draft. A collar 26 is seamed at its lower edge with the upper edge of the stack part 22 and this collar fits tightly frictionally within the upper stack part 21. i l

The lower edge of the stack part 21 1s curled inwardly at 28 beneath the seam 27, and this stack part is provided with one or more dogs 29 pivoted in ears 31 extending outwardly of the part 21. The dogs 29 are adapted to engage over the upper edge of the collar 26 when the turned-in edge 28 1s in engagement with the bottom of the seam 27. These dogs therefore serve to hold the parts positively in extreme extended relation. The length of the stack when extended is materially longer than the depth of the body and preferabl more than twice its depth and has su cient length to cause complete combustion of the gases given 0E from the fuel before they are emitted from the stack. A hood 32 is 'provided at the upper endof the stack, this hood being held elevated thereabove by spring arms 33 passing behind brackets 34' on the end of the stack. Each of these arms is offset at 35 to place the arm under pressure when elevated and thereby prevent inadvertent closing of the hood. A hand-hold 36 is provided on the top of the hood.

The fuel ordinarily used in heaters of this character is heavy and slow burning oil which, unless properly controlled, forms a.

large flame of heavy gas and smoke which, in a restricted chamber, soon chokes out air of combustion and causes the flame to be extinguished. To obviate this I provide a setoff chamber in which these heavy gases and smoke as formed will be immediately removed to the-stack and a continuous flame established which may play freely over the body of the fuel and keep it constantly burning. This chamber is set oil by a baffle plate or partition 37 formed as seen in Fig. 6 of a single sheet of metal curved to bring its edges 38 into engagement with the inner surface of the side wall of the body A. This plate isslotted at intervals at 39, these slots being relatively long and of narrow height. A chamber is thus set off and defined in part by the wall of the container body, and in part also by the plate or partition 37. This set-oil" chamber, during the operation of the burner, provides a pilot light which, by reason of the continuous removal'of its partially burned products, remains always lighted and ready to ignite the fuel in the main chamber of the body as fast as it is extinguished. The draft through the body is controlled by perforations 38, 39' and 40 in a plate 41 closing the aperture 19, which plate carries a damper 42 having an opening 43 adapted to uncover one, two or all of the perforations 38, 39' and 40. The plate 41 is movable about a pivot 44 to permit the container to be easily filled and a cap 45 pivotally mounted at 46 upon the cover is adapted to close over the damper to prevent moisture seeping in when the burner is left in the orchard or other locality being heated during rainy weather.

Clips 47, preferably of wire and pivoted at 48 on the cover are provided, such clips being constructed to close around the interengaged flanges of the cover and body and to engage beneath the handhold 12 to more securely hold the stack and cover in place. If desired, in the operation of the heater, the parts of the stack may be adjusted vertically in accordance with the characteristics of the fuel burned, although this is thought not to be necessary, it being sufiicient that the stack be elongated to its full height to accommodate fuel of any characteristic.

It is thought that the invention and many of its attendant advantages will be under stood from the foregoing description,and it Will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing any of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. An orchard heater comprising a body adapted to contain fuel for burning and a stack therefor, said stack being provided with horizontally disposed corrugations and openings extending through the lower portions of said corrugations, and means for inclosing more or less of said corrugations thereby admitting more or less air to the stack.

2. An orchard heater comprising a body adapted to contain fuel for burning, a stack, a vertically adjustable hood therefor, and opposing spring arms for holding said hood on. the stack when adjusted upwardly thereon.

3. An orchard heater comprising a body adapted to contain fuel for burning, a sectional stack, and a pivoted member for holding said sections in desired relation, said sections having means which limit telescopic extension after the engagement of which,

said pivoted member prevents collapse.

4. An orchard heater comprising a body adapted to contain fuel for burning, and a stack on said body, said stack consisting of relatively telescoping sections, one of said heights between said openings, according to the vertical telescopic adjustment of the upper section.

5. An orchard heater comprising a container body, and a partition setting oif a part thereof, said partition extending to the top of the body and being provided with a plurality of flame-admission slots which are elongated in a direction parallel with the surface of the fuel in said body.

6. An orchard heater comprising a fuel receptacle, an inner stack section communicating with said receptacle and having air inlets, an outer stack section telescoping outside of said inner stack section and adapted to close more or less of said air inlets, and means for holding said outer section in its adjusted position. I

7. An orchard heater comprising a body adapted to contain a fuel; and'astack con-' sisting of av plurality of telescoping sections communicating with said body; the lower section being formed with annular corrugations, and a plurality of apertures through the under sides of said corrugations adapted to be closed more or less by the telescoping action of the uppersection.

8. An orchard heater comprising a body;

' a stack communicating therewith and extending upward therefrom, said stack comprising a plurality of telescoping sections; and a collar secured to one of the sections and of a greater .diameter than the same, said collar frictionally engaging the interior of the other section to retain the sections in adjusted position relative to each other.

*9 An orchard heater comprising a body; a stack communicating therewith and extending upward therefrom, said stack com-- prising a plurality of telescoping sections; and a separate cylindrical collar secured to the inner and lower section and of a greater diameter than the same, said collar frictionally engaging the interior of the outer and upper section to retain the sections in adjusted position relative to each other.

10. An orchard heater comprising a body adapted to contain a fuel; a stack consisting of a plurality of telescoping sections communicating with said body; the lower section being formed with annular corrugations, and a plurality of apertures through the under sides of said corrugations adapted to be closed more or less by the telescoping action ofthe upper section; and a movable locking device on the outer section and adapted to be engaged with the inner section to hold the outer section in adjusted position quantity of air to the of a plurality of telescoping sections communicating with said body; and means adapted to hold said sections in extended position, said means comprising dogs pivoted in one section and engaging the other section when the sections are extended.

12. An orchard heater comprising a body adapted to contain fuel; a stack consisting of a plurality of telescoping sections communicating with said body; and means adapted to hold said sections in extended position, said means comprising dogs pivoted on the outer section and engaging the inner section when the sections are adjusted for the admission to the stack of the desired amount of air.

13. An orchard heater comprising a body adapted to contain fuel; a stack communicating with said body; a baflie plate within said body and adjacent the wall of said body and provided with pilot light apertures and forming with the wall a set-off chamber, said apertures being elongated in a direction parallel with the surface of thefuel in i said body, said baflie plate being out of contact with the bottom of said body to permit of flow of the fuel; and a damper communicating said set-ofl chamber with the air.

14. An orchard heater comprising a body adapted to contain fuel; a stack communicating with said body; .a baffle plate within said body and adjacent the wall of said body and provided with flame-admission apertures which are elongated in a direction parallel with the surface of the fuel in said body, said baflie plate forming with the wall a set-off chamber and being out of contact with the bottomof said body to permit of flow of the fuel, and at the top of the body separating the main chamber of the heater from said set-off chamber; and a damper communicating with said set-off chamber and with the air.

- 15. An orchard heater comprising a fuel is depressed; and opposed spring arms for holding the hood in elevated position to open the stack for the operation of the heater.

l7. An orchard heater comprising a body adapted to contain fuel; a stack communieating with said body; an adjustable hood for said stack, said hood being provided with spring legs adapted to grip the stack and retain the hood in adjusted position;

and brackets on the stack which cause the 10 legs to grip the stack When the hood is elevated.

Signed in the presence of two subscribing witnesses. v CHARLES STOLLBERG.

Witnesses C. W. GRAHAM, D. F. Mnnms. 

